2121120212 has 12 divisors (see below), whose sum is σ = 3714334176. Its totient is φ = 1059881880.

The previous prime is 2121120203. The next prime is 2121120229. The reversal of 2121120212 is 2120211212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162488 + ... + 175055.

It is an arithmetic number, because the mean of its divisors is an integer number (309527848).

Almost surely, 2^2121120212 is an apocalyptic number.

It is an amenable number.

2121120212 is a deficient number, since it is larger than the sum of its proper divisors (1593213964).

2121120212 is a wasteful number, since it uses less digits than its factorization.

2121120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339118 (or 339116 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2121120212 is about 46055.6208513141. The cubic root of 2121120212 is about 1284.8578851347.

Adding to 2121120212 its reverse (2120211212), we get a palindrome (4241331424).

The spelling of 2121120212 in words is "two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twelve".